Peel off skin discolorations and spots with the Extra Strength Yellow Peeling Oil. Whether you have skin problems such as dark knuckles, hands or feet,?Extra?Strength?Yellow Peeling Oil?contains Glycolic Acid, and Lactic Acid that works by intensively exfoliating dead skin cells while accelerating the formation of new cells. What this means is that it simply peels off the skin!Peeling usually start from the 4th or 5th day of usage. During this period you might feel quite uncomfortable as the skin becomes itchy and tingling. Do not be alarmed, this only means the product is working it way to the skin layers and preparing to get rid of dead skin. For relief, use petroleum jelly or hydrocortisone cream on irritated areas